Go head-to-head in furious fighting action and prove which one of Sonic and his friends is really the best fighter. Features 8 playable characters with unique abilities, fighting techniques, strengths and weaknesses. Link up to 4 systems together with a Game Boy Advance Link Cable (sold separately) for awesome multiplayer action!

Features:- Fast game play and furious battles starring Sonic, Tails, Shadow, and more!- Eight playable characters and one mystery fighter to unlock.- Multiple special attacks for each character, as well as team-based cooperative attacks.- 3D battles for up to four players, either solo or in teams.- Single player mode lets you create and train your own AI fighter Features an additional Party Game that lets up to four players compete with one cartridge.